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Extramammary Paget disease in a retrorectal dermoid cyst: report of a unique case
Khin Thway1, Alexander Polson, Romney Pope
1Department of Histopathology, Royal Marsden Hospital, London, UK.
Abstract:
Retrorectal (presacral) dermoid cysts are rare entities, also described as mature cystic or monodermal teratomas. We present a unique case arising in a 64-year-old man, in which the lining squamous epithelium showed marked expansion by Paget disease of extramammary type, and discuss the clinical, radiologic, and pathologic findings.
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